<body>
<script src="../include.js"></script>
<script>
    test(() => {
        let observer = new MutationObserver(function() {});
        observer.observe(document.body, { attributes: true, childList: true, subtree: true });

        let div = document.createElement("div");
        document.body.appendChild(div);
        div.remove();
        println("PASS! (Didn't crash)");
    });
</script>
